Package: CDM
Type: Package
Title: Cognitive Diagnosis Modeling
Version: 8.3-14
Date: 2025-07-13 14:03:01
Authors@R: c(person(given = "Alexander",
                        family = "Robitzsch",
                        role = c("aut", "cre"),
                        email = "robitzsch@ipn.uni-kiel.de"),
                 person(given = "Thomas",
                        family = "Kiefer",
                        role = "aut"),
                 person(given = c("Ann", "Cathrice"),
                        family = "George",
                        role = "aut"),
                 person(given = "Ali",
                        family = "Uenlue",
                        role = "aut"))
Maintainer: Alexander Robitzsch <robitzsch@ipn.uni-kiel.de>
Description: 
    Functions for cognitive diagnosis modeling and multidimensional item response modeling 
    for dichotomous and polytomous item responses. This package enables the estimation of 
    the DINA and DINO model (Junker & Sijtsma, 2001, <doi:10.1177/01466210122032064>),
    the multiple group (polytomous) GDINA model (de la Torre, 2011, 
    <doi:10.1007/s11336-011-9207-7>), the multiple choice DINA model (de la Torre, 2009, 
    <doi:10.1177/0146621608320523>), the general diagnostic model (GDM; von Davier, 2008, 
    <doi:10.1348/000711007X193957>), the structured latent class model (SLCA; Formann, 1992, 
    <doi:10.1080/01621459.1992.10475229>) and regularized latent class analysis 
    (Chen, Li, Liu, & Ying, 2017, <doi:10.1007/s11336-016-9545-6>). 
    See George, Robitzsch, Kiefer, Gross, and Uenlue (2017) <doi:10.18637/jss.v074.i02> 
    or Robitzsch and George (2019, <doi:10.1007/978-3-030-05584-4_26>)     
    for further details on estimation and the package structure.
    For tutorials on how to use the CDM package see 
    George and Robitzsch (2015, <doi:10.20982/tqmp.11.3.p189>) as well as
    Ravand and Robitzsch (2015).
Depends: R (>= 3.1), mvtnorm
Imports: graphics, grDevices, methods, polycor, Rcpp, stats, utils
Suggests: BIFIEsurvey, lattice, MASS, miceadds, ROI, sfsmisc
LinkingTo: Rcpp, RcppArmadillo
Enhances: dina, GDINA, mirt, rrum
LazyLoad: yes
LazyData: yes
URL: https://github.com/alexanderrobitzsch/CDM,
        https://sites.google.com/view/alexander-robitzsch/software
License: GPL (>= 2)
BugReports: https://github.com/alexanderrobitzsch/CDM/issues?state=open
NeedsCompilation: yes
Packaged: 2025-07-13 12:08:38 UTC; sunpn563
Author: Alexander Robitzsch [aut, cre],
  Thomas Kiefer [aut],
  Ann Cathrice George [aut],
  Ali Uenlue [aut]
Repository: CRAN
Date/Publication: 2025-07-13 13:00:07 UTC
Built: R 4.7.0; x86_64-w64-mingw32; 2026-06-01 03:12:31 UTC; windows
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